(struct window): Rename members left to left_col,

(struct window): Rename members left to left_col,
top to top_line, height to total_lines, width to total_cols,
left_margin_width to left_margin_cols, right_margin_width to
right_margin_cols, orig_height to orig_total_lines, orig_top to
orig_top_line.  All uses changed.
(struct window): New members left_fringe_width, right_fringe_width,
fringes_outside_margins, scroll_bar_width, vertical_scroll_bar_type.
(WINDOW_XFRAME, WINDOW_FRAME_COLUMN_WIDTH, WINDOW_FRAME_LINE_HEIGHT):
New macros primarily used to simplify other macros.
(WINDOW_TOTAL_COLS): New macro.  Change relevant code that
referred to XINT (w->width).
(WINDOW_TOTAL_LINES): New macro.  Change relevant code that
referred to XINT (w->height).
(WINDOW_TOTAL_WIDTH): New macro.  Change relevant code that
referred to XINT (w->width) * canon_x_unit.
(WINDOW_TOTAL_HEIGHT): New macro.  Change relevant code that
referred to XINT (w->height) * canon_y_unit.
(WINDOW_LEFT_EDGE_COL): New macro.  Change relevant code that
referred to XINT (w->left).
(WINDOW_RIGHT_EDGE_COL): Renamed from WINDOW_RIGHT_EDGE.  Change
all uses and code that referred to XINT (w->left) + XINT (w->width).
(WINDOW_TOP_EDGE_LINE): New macro.  Change relevant code that
referred to XINT (w->top).
(WINDOW_BOTTOM_EDGE_LINE): New macro.  Change relevant code that
referred to XINT (w->top) + XINT (w->height).
(WINDOW_LEFT_EDGE_X): New macro.  Change relevant code that
referred to XINT (w->left) * canon_x_unit.
(WINDOW_RIGHT_EDGE_X): New macro.  Change relevant code that
referred to (XINT (w->left) + XINT (w->width)) * canon_x_unit.
(WINDOW_TOP_EDGE_Y): New macro.  Change relevant code that
referred to XINT (w->top) * canon_y_unit.
(WINDOW_BOTTOM_EDGE_Y): New macro.  Change relevant code that
referred to (XINT (w->top) + XINT (w->height)) * canon_y_unit.
(WINDOW_LEFTMOST_P): New macro.
(WINDOW_BOX_LEFT_EDGE_COL): Renamed from WINDOW_LEFT_MARGIN.
All uses changed.
(WINDOW_BOX_RIGHT_EDGE_COL): Renamed from WINDOW_RIGHT_MARGIN.
All uses changed.
(WINDOW_BOX_LEFT_EDGE_X): Renamed from
WINDOW_DISPLAY_LEFT_EDGE_PIXEL_X, moved from dispextern.h.
Do not exclude left fringe width.
(WINDOW_BOX_RIGHT_EDGE_X): Renamed from
WINDOW_DISPLAY_RIGHT_EDGE_PIXEL_X, moved from dispextern.h.
Do not exclude fringe widths.
(WINDOW_LEFT_FRINGE_WIDTH, WINDOW_RIGHT_FRINGE_WIDTH)
(WINDOW_FRINGE_COLS, WINDOW_TOTAL_FRINGE_WIDTH): New macros.
Change relevant code that referred to FRAME_LEFT_FRINGE_WIDTH,
FRAME_RIGHT_FRINGE_WIDTH, FRAME_FRINGE_COLS, and
FRAME_TOTAL_FRINGE_WIDTH to allow per-window fringe settings.
(WINDOW_HAS_FRINGES_OUTSIDE_MARGINS): New macro.
(WINDOW_VERTICAL_SCROLL_BAR_TYPE, WINDOW_HAS_VERTICAL_SCROLL_BAR)
(WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT)
(WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_RIGHT)
(WINDOW_CONFIG_SCROLL_BAR_WIDTH, WINDOW_CONFIG_SCROLL_BAR_COLS):
New macros.  Change code which referenced corresponding
FRAME_VERTICAL_SCROLL_BAR_TYPE, FRAME_HAS_VERTICAL_SCROLL_BARS,
FRAME_HAS_VERTICAL_SCROLL_BARS_ON_LEFT,
FRAME_HAS_VERTICAL_SCROLL_BARS_ON_RIGHT,
FRAME_SCROLL_BAR_PIXEL_WIDTH, and FRAME_SCROLL_BAR_COLS macros to
allow per-window scroll-bar settings.
(WINDOW_LEFT_SCROLL_BAR_COLS, WINDOW_RIGHT_SCROLL_BAR_COLS): New macros.
(WINDOW_LEFT_SCROLL_BAR_AREA_WIDTH): New macro.  Change code that
referred to FRAME_LEFT_SCROLL_BAR_WIDTH.
(WINDOW_RIGHT_SCROLL_BAR_AREA_WIDTH): New macro.  Change code
that referred to FRAME_HAS_VERTICAL_SCROLL_BARS_ON_RIGHT and
FRAME_SCROLL_BAR_WIDTH.
(WINDOW_SCROLL_BAR_COLS, WINDOW_SCROLL_BAR_AREA_WIDTH)
(WINDOW_SCROLL_BAR_AREA_X): New macros.
(WINDOW_HEADER_LINE_HEIGHT): Renamed from
WINDOW_DISPLAY_HEADER_LINE_HEIGHT, moved from dispextern.h.
(WINDOW_BOX_HEIGHT_NO_MODE_LINE): Renamed from
WINDOW_DISPLAY_HEIGHT_NO_MODE_LINE, moved from dispextern.h.
(WINDOW_BOX_TEXT_HEIGHT): Renamed from
WINDOW_DISPLAY_PIXEL_WIDTH, moved from dispextern.h.
(WINDOW_TO_FRAME_PIXEL_X, WINDOW_TO_FRAME_PIXEL_Y)
(FRAME_TO_WINDOW_PIXEL_X, FRAME_TO_WINDOW_PIXEL_Y)
(WINDOW_TEXT_TO_FRAME_PIXEL_X): Moved here from dispextern.h.
(WINDOW_LEFT_MARGIN_WIDTH): Renamed from
WINDOW_DISPLAY_LEFT_AREA_PIXEL_WIDTH, moved from dispextern.h.
(WINDOW_RIGHT_MARGIN_WIDTH): Renamed from
WINDOW_DISPLAY_RIGHT_AREA_PIXEL_WIDTH, moved from dispextern.h.
(window_from_coordinates): Update prototype.
(Fset_window_buffer): Update EXFUN.
(set_window_buffer): Update prototype.